Finally I got the solution! I took into account the following advices:
Check all security patches,; everthing was ok , so changes made.
- install Windows Installer 3.1 v2 (3.1.4000.2435) , that was installed previously , so no changes made.
- NET Framework 1.1.I had higher versions, but not 1.1 , so installed it.
- Microsoft Visual C++ 2008 Redistributable, I installed it.
After that, restart pc and I updated pc drivers, intel chipset(not needed) and NVDIA graphic card driver.
Next, download and install Avast 7 free from official web.
After that, system loaded sucessfully but freezes after avast is loaded and stay resident.
My last action, use msconfig.exe to disable all resident programs except avast, to avoid any potential conflict between them.
Now system is working fine...
I post it here if can help anybody with similar problem.
Thank you very much Tech, ebozzz and iroc955 for your kind help, fast and professional assistance even being a free version.